Sahih al-Bukhari 4363
Sahih al-Bukhari · Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · The Hajj in which Abu Bakr led the people
Narrated Abu Huraira:
حَدَّثَنَا سُلَيْمَانُ بْنُ دَاوُدَ أَبُو الرَّبِيعِ ، حَدَّثَنَا فُلَيْحٌ ، عَنِ الزُّهْرِيِّ ، عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ ، عَنْ أَبِي هُرَيْرَةَ ، أَنَّ أَبَا بَكْرٍ الصِّدِّيقَ ـ رضى الله عنه ـ بَعَثَهُ فِي الْحَجَّةِ الَّتِي أَمَّرَهُ النَّبِيُّ صلى الله عليه وسلم قَبْلَ حَجَّةِ الْوَدَاعِ يَوْمَ النَّحْرِ فِي رَهْطٍ يُؤَذِّنُ فِي النَّاسِ لاَ يَحُجُّ بَعْدَ الْعَامِ مُشْرِكٌ وَلاَ يَطُوفُ بِالْبَيْتِ عُرْيَانٌ.
That during the Hajj in which the Prophet (ﷺ) had made Abu Bakr As Siddiq as chief of the, Hajj before the Hajj-ul-Wida,' on the day of Nahr, Abu Bakr sent him along with a group of persons to announce to the people. "No pagan is permitted to perform Hajj after this year, and nobody is permitted to perform the Tawaf of the Ka`ba naked."